Simple UWB-TOA estimation method

被引：0

作者：

Xiong H.-L. ^{[1
]}

Wang J. ^{[1
]}

Tian H.-X. ^{[1
]}

Yang H. ^{[1
,2
]}

Yi K.-C. ^{[1
]}

机构：

[1] State Key Lab. of Integrated Service Networks, Xidian Univ.

[2] China Academy of Space Technology

来源：

Xi'an Dianzi Keji Daxue Xuebao/Journal of Xidian University | 2010年 / 37卷 / 04期

关键词：

Polyphase filter; Positioning; Time of arrival(TOA) estimation; Ultra wideband;

D O I：

10.3969/j.issn.1001-2400.2010.04.024

中图分类号：

学科分类号：

摘要：

We propose a novel UWB-TOA estimation method. High-precision sample recovery is achieved using the polyphase filter, overcoming the shortcomings of the traditional method which needs the sampling data speeds up to tens of GHz to achieve high-precision positioning, conquering the bottlenecks of AD-chip hardly implemented, and the FPGA chips fail to receive and deal with such a large number of high-speed sampling data. The proposed scheme has laid a foundation of implementation and market development of UWB positioning chips. Theoretical analysis and simulation show that the proposed scheme can achieve precise positioning in short distances, that the location error can reach the centimeter level, and that the computational complexity is largely reduced compared with the coherent detection TOA estimation.

引用

页码：716 / 721

页数：5

共 9 条

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